Q: How to replace the PCV Valve Hose on GMC Canyon?
A: Start the positive crankcase ventilation hose replacement by taking off the air cleaner resonator along with its outlet duct. You must detach both positive crankcase ventilation (PCV) fresh air tube from the air cleaner resonator and pcv dirty air tube from the camshaft cover and the Intake Manifold . The piecewise installation starts with reattaching both the pcv fresh air tube to the air cleaner resonator then continuing with the pcv dirty air tube connection between the camshaft cover and Intake Manifold. Reinstall the air cleaner resonator together with the outlet duct.